Xen through 4.8.x allows local x86 PV guest OS kernel administrators to cause a denial of service (host hang or crash) by modifying the instruction stream asynchronously while performing certain kernel operations.
| Software | From | Fixed in |
|---|---|---|
| xen / xen | - | 4.8.0.x |
| citrix / xenserver | 7.0 | 7.0.x |
| citrix / xenserver | 6.5 | 6.5.x |
| citrix / xenserver | 6.0.2 | 6.0.2.x |
| citrix / xenserver | 6.2.0 | 6.2.0.x |